Advertising BGP-4 from two islands

[herrin-nanog at dirtside.com (William Herrin)]

On Sat, Sep 12, 2009 at 9:35 PM, Francois Menard<francois at menards.ca> wrote:
> I have an opportunity to launch services in a remote marke, where I cannot
> extend my backbone to.
>
> However, this market is big enough that I can afford to put a Cisco 7201
> over there and peer in BGP-4.
>
> Do you have any advice as to what may happen if I advertise different blocks
> from the same AS number, from two different locations, one of which I do not
> have my own transport facilities to...

This probably qualifies as a "unique routing policy" under ARIN NRPM
section 5. That allows you to get another AS number.

You could also get a small block of staticly-routed IPs from your ISPs
in each location and use them to anchor a VPN (e.g. a GRE tunnel).
That'd have the effect of extending your backbone.

Regards,
Bill Herrin

-- 
William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
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